三维机械零件图信息描述方法和数学模型

Input Describing Method and Representing Model for Detail Drawing Information of 3~Dimensional Mechanical Parts

本文叙述交互式三维机械零件图信息输入处理系统GEOCORE的图形信息描述方法和数据表达模型.借助GEOCORE系统,用户不需任何尺寸公差换算,可直接将完整的三维零件图信息输入计算机.所得到的数据表达模型,不仅包含了工件完整的实体信息,还为用户提供了完整的尺寸公差信息和图形生成关系信息.

The input describing method and representing model adopted in a detail drawing information input processing system(GEOCORE) for 3-dimensional mechanical parts are proposed. By interaction with the system, the detail drawing information can be easily computerized without any dimension and tolerance recalculation. The data representing model of the system contains the geometric information, the dimension and tolerance information as well as the geometric entity construction information of 3-dimensional mechanical parts.